What number is needed to complete the square?

x^2+6x+?

A. 36

B. 3

C. 9

D. 6

The ratio of the lengths of the radii of two spheres is 5 : 8. What is the ratio of the surface area of the smaller sphere to the surface area of the larger sphere?

Write the expanaded form of 475,536,821

Find two numbers that you can multiply to get to get a product of 0.4

How to find percent of water in hydrated salt?

Bob swims 10 laps on even numbers dates he swims 15 laps on odd numbers dates how many laps has he completed by the sixth of the month

Matt and Taylor are taking a test. The test is designed to produce an overall mean score of 80, with a standard deviation of 6 for all test takers. Suppose Matt scored an 85 on the test and Taylor scored a 78 on the test.

A car skids to a stop, leaving four skid marks with an average length of 60 feet. The road is asphalt. Skid tests reveal a drag factor of 0.75. Since all four wheels were braking, the braking efficiency is 100% or 1.00.

A candidate for mayor plans to campaign at 5 shopping malls before the election. In how many different ways can the candidate schedule the visits? Enter your answer as a whole number, such as 42.

mark is constructing a walkway around his in ground pool the pool is 20 by 40 and the walkway will be 4 wide what is the area of the walkway

You run a marina thats has 122 boat slips. you currently have 97 boats in the slips. how many slips are empty?